Mold for collar-buttons.



No. 700,606. Patented May 20, I902. J. S. BARNES. MOLD FOB COLLARBUTTONS.

(Applies-thin filed May 14, 1900.)

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Attorneys. I

THE- uoams PETERS on PNDTO-LITHQ, wAsnmcroN. 41c,

No. 700,606. Patented May 20, I902.

- J. S. BARNES.

MOLD FOR COLLAR BUTTONS.

(Application filed May 14, 1900.)

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UNITED STATES,

JOHN S. BARNES, OF

DETROIT, MICHIGAN.

MOLD FOR COLLAR-BUTTONS.

SPECIFICATION formingpart of Letters Patent No. 700,606, dated May 20,1902.

My invention relates to improvements in molds for collar-buttons orother articles having an irregular outline; and it consists in providinga flask for holding the mold, which flask is in two parts, the dragbeing supported in an inclined position upon a rigid arm and the copehinged to the drag at one end and provided with suitable clamps, and inproviding molds forsaid flask fo'rmed'of longitudinal strips or bars,each barhaving a series of like depressions to form a mold for one'part' of a collar-button, the adjacent bars' beingeach formed with alike series of depressions to form other parts of the button and barslongitudinally grooved to form gates and provided with lateral runnersleading therefrom to conduct the molten metal into the molds proper; andits object is to provide a mold for casting a large number of smallarticles at one time,which is so constructed that it may be cheaply madeand will readily release the articles when cast and to provide means forforcibly ejecting the articles from the molds when cast and also toprovide certain other" new and useful features, hereinafter more fullydescribed, and particularly pointed out in the claims, reference beinghad to-the accompanying drawings, in which Figure l is a plan view ofthe flask opened out and showing the inner faces of the mold. Fig. 2 isa side elevation of the flask when closed; Fig. 3, a section of the-flask and molds on the line 3 3 of Fig. 2. Fig. 4 is an enlarged detailshowing a'portion of the moldsin-plan view. Fig. 5 is the same showing amold for castingva modified form of button. Fig. 6 is-an enlargedsectionon the line 6 6 of Fig. 1 of the flask and mold when closed. Fig.7 is a like section on the same line of the drag of the flask and itshalf of the mold, illustrating the manner in which the cast articles areejected therefrom. Fig. Sis a perspective Serial No. 1 ,672. on model.)

view of a portionof the drag and its half of the mold.

Like characters refer to'like parts in all of the 'figures. A and A arethe castings, forming the flask for holding the bars 1, 2, and 3, whichform the molds, the part A being the upper removable part or cope, whichis hinged to the part 'A or drag at Z. The base D, which may be boltedto the floor or other suitable foundation, is provided with anupwardly-extending curved arm D, the upper end of which is adj ustablysecured to the back of the drag A of the flask, and said flask:isthereby rigidly supported in a position inclined from the perpendicular.

The cope A and drag A are each provided with alongitudinal rib G,'and ateach side of this rib are laid the bars 1, 2,and 3, said bars beingprovidedwith recesses or depressions and conjointly form the mold, thebars on the cope being the counterpart of those on the drag and whenbrought face to face by closing the flask form a complete mold for thereception of the molten metal. The bars 3 are provided with longitudinalsemicircular grooves B, forming gates or conduits for the metal, andleading from-the gates B are the lateral grooves or runners c, whichtaper to a small opening at the edge of the bar. The bars 2 are eachprovided with a series of re cesses d at one side to form the mold forbase "of the button, and leading from these recesses are the taperedrecesses e, which form the shank of the button, and a correspondingseries of recesses f is provided in each of the bars l'to form the headof the button. Each half of the mold is provided with four gateb'ars'3,the gates being closed at their lower ends and made flaring at theirupper ends, the'upper end of the flask being alsobeveled to facilitatethe pouring of the metal into the communicating with the recesses f inthejbars 1, one of which bars lies adjacent to each bar 2, and thus eachgate 13 communicates with two rows of molds, and eight rows of buttonsare formed at each operation. To hold these gates, and adjacent to eachofthe bars 3 are the bars 2, one at each side, with the recesses (Z incommunication with the small openings" of the runnersc,the taperingrecessesye each j bars forming the molds in place, clampingbars a areprovided, whichform the outer sides of the cope and drag, and a'transverse opening is provided near the middle of these bars and alsothrough the ribs G and moldbars, through which openings extend the rodsd, said rods being secured at one end in one of the clamping-bars a andat their opposite ends screwthreaded and provided with a crank-handleI), having an internally-screwthreaded head to engage the outer surfaceof said clampingbar and force said bars a toward each other to clamp themolds."

On the back of the drag A are the lugs K, to which the curvedclamping-arms F are pivoted at E, and on the cope A are the ribs F,adapted to be engaged by the clamping-screws G2 on the ends of the saidarms F. To the lugs K are pivoted levers 5, each of which levers isprovided with a transverse bar 8, extending across the flask and formedwith sockets in which the outer ends of pins 4 are pivoted, said pinsbeing extended through the drag A and provided on the inner ends withscrew-threads to engage screw-threaded sockets in each of the bars 3.The opening in the bars 3, through which the rod 01 passes, is extendedlaterally, as shown in Fig. 3, to allow the said bars to be movedoutward, so that their inner faces will be above the surface of themold.

To insure perfect alinement of the two halves of the flask, pins 6 areprovided on the cope, adapted to engage openings 7 in the bed of theflask, said pins and openings being in the ribs G near their ends.

The operation of my device is as follows: The parts being in theposition shown in Fig. 2, with the clamping-screws G2 firmly pressingthe halves of the flask together andthe cranks I) being turned to forceand hold the bars of the mold firmlyin contact, the molten metal ispoured into the upper open ends of the gates B, and from them it flowslaterally through the runners 0 into the recesses formed in the bars 2and 1 to form the buttons. When the metal has cooled suiflciently, theclamping screws G are released and the arms F turned back out of theway. The crank 12 is then turned to allow the mold-bars in the cope A tospread apart, thus releasing the metal inthat half of the mold, whichhalf or cope is then removed by grasping the handle H and turning thecope on its pivot, leaving the metal all in the drag. To remove thebuttons from the drag, the crank bis turned to allow the bars of thedrag to move, loosening the buttons, and the levers 5 are depressed,thus forcing the pins 4 inward, which in turn move the bars 3 of themold, projecting the face of each above the plane of the bars 1 and 2and lifting the buttons from the molds, said buttons being stillattached to the sprue, the sprue-bar lying in the gate 15. If it isdesired to make some other form of button, the bars 1 and 2 may beremoved and others put in their places having recesses differentlyformed, as is shown in Fig. 5,'a button having a round head beingprovided by changing the bar 2 only.

What I claim as my invention is 1. In a two-part mold consisting ofduplicate halves, a central longitudinal bar in each half in whichare-formed the gate and runners, bars in each half adjacent to said barand having a series of recesses and grooves forming molds each connectedwith one of said runners, and means for clamping the 'two parts of themold together.

2. In a two-part mold consisting of duplicate halves hinged together atone end, a series of sets of longitudinal mold-bars in each half, eachset consisting of a central bar in which are formed a gate and runners,and bars at each side of said bar having a series of recesses formingmolds, one opposite each of said runners, clamping-bars engaging theouter bars of each half of the mold, means for drawing saidclamping-bars toward each other to clamp the mold-bars, and curvedclamping-arms pivoted to one half of the mold and adapted to engage theother half to hold the faces of the mold in contact.

3. In a mold for irregular forms, a flask formed with a centrallongitudinal rib on the face of the cope portion thereof, and acorresponding rib on the drag; bars having recesses forming the molds,extending parallel with said ribs and at each side thereof; clamping-bars engaging the outer mold-bars and forming the sides of the copeand drag; rods secured to the clamping-bars at one side of said flask,extended through the mold-bars, the ribs, and the clamping-bars at theoppo= site side of the flask, and screw thread'ed at their oppositeends; and crank-handles hav-' ing internally=screW-threaded heads to receive the rods and engage the clamping-bar's.

4. In a two-part mold, a series of longitu dinal bars forming each halfand provided with recesses forming the molds, and gate barslongitudinally grooved to form gates and grooved laterally to formrunners, a twopart flask to receive and hold said mold and gate bars,and pins extending through'said flask and engaging said gate-bars toraise the same above the surface of the mold and eject the castarticles.

5. In a two-part mold, sets of longitudinal mold-bars forming each halfof the mold, gatebars longitudinally grooved to form gates adjacent toeach set of mold-bars, a two-part flask adapted .to receive said moldand gate bars, pins secured to the bottom of said gatebars and extendingthrough openings in the drag of the flask, a bar having recesses toreceive the outer end of said pins, extending transversely across thedrag, and levers pivoted to the drag to actuate said bars.

6. In a two-part mold, a flask consisting of a drag portion, means forrigidly supporting said drag in a position inclined from the vertical, acope portion hinged to the drag at its lower end, clamping-bars on thecope and drag forming the sides of the flask and provided withtransverse openings, curved clamping-arms pivoted to the drag at one endand provided with clamping-screws at their opposite ends to engage ribson the cope and hold the halves of the flask together, and a moldportion consisting of central longitudinal ribs provided with transverseopenings, on the drag and cope, sets of bars at each side of said ribsconsisting of a central gatebar longitudinally grooved to form a gateand provided with an elongated transverse opening, and mold-bars at eachside thereof pro vided with transverse openings, rods secured at one endwithin the openings in said olamp-. ing-bars at one side of the flaskand extended through the said openingsin said ribs, moldbars, elongatedopenings in said gate-bars and the said openings in the clamping-bars atthe opposite side of said flask, crank-handles on the outer ends of saidrods, pins secured at one end to the gate-bars and extended through thedrag, transverse bars having recesses to receive the outer ends of saidpins, and levers pivoted to the drag and adapted to operate the saidpins.

JOHN S. BARNES.

Witnesses:

HATTIAN BRUCE, JNo. (J. TOBIAS.

